Imagine a print queue in a busy office environment. Which data structure, implemented using an array, would be most suitable for managing this print queue effectively?
Binary Tree
Circular Queue
Stack
Hash Table
What is the primary difference between a queue and a stack?
Queues store numbers, while stacks store characters.
Queues use FIFO (First-In-First-Out), while stacks use LIFO (Last-In-First-Out).
Queues use LIFO (Last-In-First-Out), while stacks use FIFO (First-In-First-Out).
Queues are linear data structures, while stacks are non-linear.
What value does the 'isEmpty' operation on a queue return if the queue contains no elements?
-1
The first element in the queue
0
True
What is the main advantage of using a circular array for implementing a queue compared to a regular array?
Efficient utilization of space after multiple enqueue and dequeue operations
Better handling of sorted data
Reduced memory consumption
Faster access to individual elements
What happens to the elements in an array-based queue after a dequeue operation?
The remaining elements are shifted one position towards the front of the array.
The array is resized to accommodate the removal of the element.
The dequeued element is marked as deleted but remains in the array.
The 'front' pointer is adjusted to point to the next element in the queue, effectively removing the first element logically.
How does an array-based queue handle the underflow condition?
By raising an exception or returning an error value when attempting to dequeue from an empty queue.
By overwriting the existing elements.
By dynamically resizing the array.
By using a circular array to reuse the empty spaces.
What is the primary disadvantage of using an array to implement a queue?
Complex implementation
Inefficient search operations
High memory usage
Fixed size limitation
Which of the following real-world scenarios can be effectively modeled using a queue?
Implementing an undo/redo functionality in a text editor.
Handling customer service requests in a first-come, first-served manner.
Storing the browsing history in a web browser.
Managing a priority-based task list.
If you were to design a system to handle customer service requests arriving through various channels, with each request needing to be addressed in the order it was received, which data structure would be most appropriate?
Binary Search Tree
Queue
Graph
Heap
What is the primary characteristic that distinguishes a queue from other linear data structures?
It is a sorted data structure.
Elements are added at one end and removed from the other.
It allows for random access of elements.
Elements are added and removed from the same end.